Refrigerator display case door



y 1932. c. v. HILL REFRIGERATOR DISPLAY CASE DOOR Filed Sept. 23, 1929Patented July 12, 1932' UNITED STATES PATENT ormcz CLEMENT V. HILIJOFTRENTON, NEW JERSEY, ASSIGNOR TO C. V. HILL & (10., INCL, OF TRENTON,NEW JERSEY, A CORPORATION OF NEW JERSEY REFRIGERATOR DISPLAY CASE DOORApplication filed September The doors of refrigerator display cases aresubject to a lower temperature on their 7 inner face than on their outerface. There is considerable moisture at times which tends to swell thedoor and put a tension on the door frame, which results in the outerpane of glass cracking and destroys its usefulness as an insulator.

The object of my invention is to provide means whereby the glass will beprovided with an air cushion to compensate for any tension imposed onthe door incident to the swelling of the stops, and thereby eliminatethe liability of the cracking of the glass; and with this and otherobjects in view my invention consists of the parts and combina- -tion ofparts hereinafter set forth.

In the drawing: L Figure 1 is a transverse sectional view throughone ofthe doors of a display case. Figure 2 is an enlarged detail sectionalview.

The reference numeral 1 designates part construction and provided withstops 2.

While I have shown the door frame 3 as being made of a molded rubberdoor with a wood core, it will be understood that my invention may beembodied in a door of any construction for refrigerator display cases.

In the drawing I have shown the door provided at one end with anextension or arm 4, which may have any configuration on its outer face.The inner face of this arm 4 is concaved'to form a groove 5. The otherside of the frame 3 is provided with a recess 6 in which a plate 7 issecured by any suitable devices, such as screws 7 said plate having atits outer free end an inturned flange 8. Between the arm 4 and plate 7 Isecure to the end of the door stops, or parting strips9 by means ofnails 10, or in any other desired manner. These stops 9 are spaced apartto re- ,ceive the glass 11 between them, while the outer faces of saidstops-9 are each provided with a recess 12, 13, the recess 12 facing themetal plate 7 and the recess 13 facing the arm 4 and its groove 5. Inassembling the glass in the frame I place the putty or compound in thegroove 5 and of a display case which may be of the desired- 23, 1929.-Serial No. 394,669.

pack it in solid, the glass is then placed in position against thisputty or compound and pressed into position, the putty is then trimmedofl' flush with the inside face of the? glass, the stop 9 is then.secured in position with recess 13 serving as an air pocket which doesnot fill up with putty until the stop swells and presses the glass. Whenthe expansion takes place, the putty or compound is forced into therecess 12. Otherwise the pressure would be very great and result in thebreaking of the glass. The next glass is placed in position, the stop -9secured to position against which the other outer glass is placed andthe putty A applied over which the plate 7 is secured. The recess 12functions the same as described in connection with the recess 13.

By my construction I am enabled to pack a. large quantity of putty, orcompound, at the edge portion protected from contact with the air, (itbeing so protected'by the arm 4 and plate 7) which materially andefliciently prevents the putty from drying out and crumbling, so thatthere is always a cushion around the edges of the glass at all times,which permits the glass to give under the strain and stress to which itis subjected whenever the door is bound by swbllen stops or slide stripsagainst which the door moves in opening and closing whereby glassbreakage is reduced to g a minimum.

It will, of course, be understood that the construction described isprovided for the four edges of the glass.

and end'members of the door as stiles.

When the door is filled with two or three glasses, set in putty orcompound, if the stops or door frames shrink or swell, even onehundredth of an inch, the putty'or comp ound is forced out between theglass and the stop, exerting a great pressure on the glass and causesthe same to crack.

The recesses and reservoir 12, 13, 5, fun'c tion as expansion chambersfor the putty which'are absolutely necessary in a hard rubber door,metal door, composition doors, and

wooden doors having a'hard rubber channel around the stiles to set theglass in.

In the claims I will refer to the top, bottom.

What I claim is:

1. In a door, the combination-with the stile, an undercut arm extendingfrom the inner edge of theedge of the stile toward the center of thedoor providing an elongated putty reservoir, a stop on said stile havinga recess facing and forming a part of said reservoir, said stop beingspaced from said arm to provide for the insertion of a pane of glasstherebetween, a plate secured to the opposite side of the stile havingan inturned flange at its free end extending toward said arm, a stopsecured to the stile adjacent to, but spaced from the first named stopand provided with a putty reservoir facing said plate. I 2. In glasspane retaining means for doors or sashes, the combination with a door orsash frame having astile, and a glass pane having an edge spaced from asurface of the stile, of holding members on the stile bearing againstthe opposite sides of the glass pane and provided in their opposed faceswith recesses facing the opposite sides of the glass comprising a moldedbody of rubber and a core of wood enclosed thereby, a glass pane havingan edge spaced from a surface of the stile, a bearing member molded withthe sash and bearing against one side of the pane, a stop member bearingagainst the opposite side of the sash and bearing against the pane, and

adj acent to and registering with the said space 7 between the edge ofthe glass and surface of the stile, and a plastic sealing mediumdisposed in said space and in the recess of one of the holding membersand adapted on expansionof the parts to spread through said space intothe recess of the other holding member.

3. In glass pane retaining means for doors or sashes, a door or sashframe having a stile,

a glass pane having an edge spaced from a surface of the stile, aholding member rigid with the frame and bearing against one side of thepane, a holding member formed separate from the frame and securedthereto and bearing against the opposite side of the pane, said membersbeing provided in their opposed faces with recesses facing the oppositesides of the glass adjacent to and, registering with said space betweenthe edge of the glass and surface of the stile, and a plastic sealingmedium disposed in said space and in the recess of one of the holdingmembers and adapted on expansion of the parts to spread through saidspace into the recess of the other holding member.

4. In glass pane retaining means for doors or sashes, a door or sashframe having a stile, a glass pane having an edge spaced from a surfaceof the stile, and retaining members carried by. the stile and bearing onopposite sides of the sash, said members having their opposed facesprovided with recesses containing a plastic sealing compound disposedbetween said members and the sides of the pane, said recesses beingarranged in alinement with said space to allow spreading of the plasticmedium from one recess to the other through said space on expansion ofthe frame and retaining members.

5. In' glass pane retaining means for doors or sashes, a door or sashframe having a stile

